Class Rational & Irrational

A rational number

• is a number that can be written as a fraction.

• is always positive.

• cannot be a repeating decimal.

• is a fraction but not a decimal.

Irrational numbers 

• never end and never repeat.

• are all negative

• reduce to $\pi$

• are square roots of perfect squares.

A terminating decimal is

• rational.

• irrational.

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

The square root of a perfect square is

• irrational.

• rational.

Tags

CCSS.8.NS.A.1

Identify the rational numbers.

• $\sqrt{64}$

• $3\pi$

• $\frac{4}{5}$

• $0.15151515...$

• 0

Tags

CCSS.6.NS.C.6

CCSS.6.NS.C.7

Identify the rational numbers.

• $\sqrt{120}$

• $\sqrt{36}$

• $\sqrt{220}$

• $\sqrt{1000}$

Tags

CCSS.6.NS.C.6

Is the following number rational or irrational?

 $\sqrt{25}$  

• Rational

• Irrational

Is the following number rational or irrational?

0.141414141414...

• Rational

• Irrational

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

Is the following number rational or irrational?

-17.5

• Rational

• Irrational

Tags

CCSS.6.NS.C.6

CCSS.6.NS.C.7

Is the following number rational or irrational?

 $\frac{77}{3}$  

• Rational

• Irrational